CN112373561A - Knuckle structure and vehicle front axle - Google Patents
Knuckle structure and vehicle front axle Download PDFInfo
- Publication number
- CN112373561A CN112373561A CN202011276177.6A CN202011276177A CN112373561A CN 112373561 A CN112373561 A CN 112373561A CN 202011276177 A CN202011276177 A CN 202011276177A CN 112373561 A CN112373561 A CN 112373561A
- Authority
- CN
- China
- Prior art keywords
- knuckle
- steering
- arm
- hole
- front axle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/18—Steering knuckles; King pins
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/20—Links, e.g. track rods
Abstract
The invention discloses a steering knuckle structure and a front axle of a vehicle, wherein the steering knuckle structure comprises a steering knuckle body and a steering knuckle arm; the steering knuckle body is formed with an extension arm, the extension arm extends backwards from the steering knuckle body, and the free end of the extension arm is used for being connected to a steering tie rod; the knuckle arm includes that it is relative installation end and the link that sets up to be along the left right side, the installation end install extremely on the knuckle body, and with the extension arm sets up along the interval from top to bottom, the link is used for being connected to on the steering drag link. According to the technical scheme, the extension arm is connected to the tie rod, the knuckle arm is connected to the steering straight pull rod, the knuckle structure is arranged in a split mode and is connected to different components respectively, the knuckle arm does not need to be bent for multiple times, the strength of the knuckle arm is greatly increased, and stress borne by the knuckle arm is reduced.
Description
Technical Field
The invention relates to the field of vehicle steering structures, in particular to a steering knuckle structure and a vehicle front axle.
Background
In the existing truck integral front axle, a main pin respectively passes through an upper main pin hole of a steering knuckle, an I-beam main pin hole, a plane bearing and a lower main pin hole of the steering knuckle; the steering knuckle is arranged at a steering knuckle taper hole, is simultaneously connected to a steering drag link and a steering tie rod, and forms a steering trapezoid together with an I-shaped beam, so that the reasonability of the inner and outer corners of left and right wheels is guaranteed, and stable steering is realized.
The existing integrated front axle steering bent arm is complex in structure, high in difficulty in changing the height of a ball head, large in bent arm fracture risk, and difficult to solve the deviation problem by adjusting the position of a bent arm taper hole when the braking deviation problem occurs. Because the bent arm is connected with the steering knuckle through the taper hole, the stress generated by the tie rod during steering causes the elastic displacement of the bent and straight arm to be larger due to the fact that the main stress point is on the bent arm and the straight arm, thereby causing the change of the positioning parameters of the front axle and reducing the service life of parts such as tires.
Disclosure of Invention
The invention mainly aims to provide a steering knuckle structure and a front axle of a vehicle, and aims to solve the problems of complex structure and high fracture risk of the front axle of the vehicle.
To achieve the above object, the present invention provides a knuckle structure comprising:
the steering knuckle comprises a steering knuckle body, a steering knuckle body and a steering handle, wherein an extension arm is formed, extends backwards from the steering knuckle body and is used for being connected to a steering tie rod; and the number of the first and second groups,
the knuckle arm includes that it is relative installation end and the link that sets up to be along the left right side, the installation end install extremely on the knuckle body, and with the extension arm sets up along the interval from top to bottom, the link is used for being connected to on the steering drag link.
Optionally, the steering knuckle body further comprises a connecting arm arranged at an interval from the extending arm up and down;
the knuckle arm is mounted to the connecting arm.
Optionally, a threaded hole is formed in the connecting arm;
a through hole penetrates through the mounting end;
the steering knuckle structure further comprises a fixing bolt, wherein a thread section of the fixing bolt penetrates through the through hole and is in threaded connection with the inside of the threaded hole.
Optionally, the knuckle body further includes two connecting arms spaced apart from each other in the vertical direction, and the two connecting arms form an accommodating space for accommodating the front axle.
Optionally, the opposite end surfaces of the two connecting arms are respectively provided with a connecting hole extending along the up-down direction;
the steering knuckle structure further comprises a main pin, two ends of the main pin are respectively rotatably installed in the two connecting holes, and the main pin is used for penetrating through the shaft hole of the front shaft.
Optionally, the knuckle structure further includes a mounting bearing, and the mounting bearing is mounted in the connecting hole and sleeved on the main pin.
Optionally, at least one connecting hole is arranged to penetrate through the connecting arm where the connecting hole is located;
the knuckle structure further comprises a dustproof cover, wherein the dustproof cover is mounted to the opening of the connecting hole, back to the accommodating space, and is arranged to cover the opening of the connecting hole.
Optionally, a first connection hole extending in an up-down direction is formed in the connection end, and the first connection hole is used for being connected to the front axle; and/or the presence of a gas in the gas,
and a second connecting hole which extends up and down is arranged at the free end of the extending arm in a penetrating manner and is used for connecting to a steering tie rod.
The invention also proposes a vehicle front axle comprising:
a front axle;
a tie rod; and the number of the first and second groups,
a knuckle structure comprising a knuckle body and a knuckle arm; the steering knuckle body is formed with an extension arm, the extension arm extends backwards from the steering knuckle body, and the free end of the extension arm is used for being connected to a steering tie rod; the knuckle arm includes that it is relative installation end and the link that sets up to be along the left right side, the installation end install extremely on the knuckle body, and with the extension arm sets up along the interval from top to bottom, the link is used for being connected to on the steering drag link.
Optionally, the steering knuckle structure further comprises a main pin, and a positioning groove is concavely arranged on the outer side surface of the main pin;
the front shaft is provided with a shaft hole which moves up and down, the side surface of the front shaft is provided with a through hole communicated with the shaft hole, and the shaft hole is sleeved on the main pin;
the vehicle front axle further comprises a positioning pin, the positioning pin penetrates through the through hole and extends into the shaft hole, and the positioning pin is clamped in the positioning groove.
According to the technical scheme, the extension arm is connected to the tie rod, the knuckle arm is connected to the steering straight pull rod, the knuckle structure is arranged in a split mode and is connected to different components respectively, the knuckle arm does not need to be bent for multiple times, the strength of the knuckle arm is greatly increased, and stress borne by the knuckle arm is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic perspective view of a steering knuckle structure according to an embodiment of the present invention;
FIG. 2 is a perspective view of the knuckle body of FIG. 1;
fig. 3 is a schematic plan view of a front axle of a vehicle according to the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 1000 | Front axle of |
3 | |
| 100 | |
4 | |
| 1 | |
5 | Dust- |
| 11 | |
200 | |
| 12 | Connecting |
300 | |
| 2 | |
400 | Locating pin |
The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that, if directional indication is involved in the embodiment of the present invention, the directional indication is only used for explaining the relative positional relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
In the existing truck integral front axle, a main pin respectively passes through an upper main pin hole of a steering knuckle, an I-beam main pin hole, a plane bearing and a lower main pin hole of the steering knuckle; the steering bent arm is arranged at the conical hole of the steering knuckle and is simultaneously connected to the conical holes of the I-shaped beam and the steering tie rod to form a steering trapezoid together, so that the rationality of the inner and outer corners of the left and right wheels is ensured, and stable steering is realized.
The existing integrated front axle steering bent arm is complex in structure, high in difficulty in changing the height of a ball head, large in bent arm fracture risk, and difficult to solve the deviation problem by adjusting the position of a bent arm taper hole when the braking deviation problem occurs. Because the bent arm is connected with the steering knuckle through the taper hole, the stress generated by the tie rod during steering causes the elastic displacement of the bent and straight arm to be larger due to the fact that the main stress point is on the bent arm and the straight arm, thereby causing the change of the positioning parameters of the front axle and reducing the service life of parts such as tires.
The invention provides a vehicle front axle, which comprises a steering knuckle structure, and the invention is applicable to any vehicle front axle comprising the steering knuckle structure, wherein the invention is shown in an embodiment in fig. 1 to 3.
Referring to fig. 1 to 2, the present invention provides a knuckle structure 100, including a knuckle body 1 and a knuckle arm 2; the steering knuckle body 1 is provided with an extension arm 11, the extension arm 11 extends backwards from the steering knuckle body 1, and the free end of the extension arm 11 is used for being connected to a steering tie rod; knuckle arm 2 includes to being relative installation end and the link that sets up about following, the installation end install extremely on the knuckle body 1, and with extension arm 11 sets up along the interval from top to bottom, the link is used for being connected to on the steering drag link.
In the technical scheme of the invention, the extension arm 11 is connected to a tie rod, the knuckle arm 2 is connected to a front shaft, so that the knuckle structure 1 is arranged in a split manner and is respectively connected to different components, the knuckle arm 2 does not need to be bent for multiple times, the strength of the knuckle arm 2 is greatly increased, and the stress borne by the knuckle arm 2 is reduced.
The position at which the knuckle arm 2 is attached to the knuckle structure 1 may be various, and may be directly attached to an end surface of the knuckle structure 1 or may be attached to a component on an end surface of the knuckle body 1.
In this embodiment, the knuckle body 1 further includes a connecting arm 12 spaced apart from the extending arm 11 in the up-down direction; the knuckle arm 2 is mounted to the connecting arm 12. The fixing of the knuckle arm 2 is facilitated, and the extension arm 11 is arranged at an interval from top to bottom so as to be connected to different components.
Specifically, a threaded hole is formed in the connecting arm 12; a through hole penetrates through the mounting end; the knuckle structure 100 further comprises a fixing bolt 3, wherein a thread section of the fixing bolt 3 is arranged in the through hole in a penetrating mode and is connected to the thread hole in a threaded mode. The knuckle arm 2 is mounted to the connecting arm 12 by the fixing bolt 3, so that the knuckle arm is convenient to mount and dismount.
It should be noted that the threaded holes are provided in plurality, the through holes are correspondingly provided in plurality, and the knuckle arm 2 is mounted on the connecting arm 12 through the fixing bolts 3 in plurality, so that the knuckle arm 2 is prevented from shaking and rotating.
Specifically, the knuckle body 100 further includes two connecting arms 12 arranged at intervals in the vertical direction, and the two connecting arms 12 form an accommodating space for accommodating the front axle. The front axle is convenient to be arranged.
Furthermore, connecting holes extending in the up-down direction are formed in the opposite end surfaces of the two connecting arms 12; the knuckle structure 100 further comprises a main pin 4, two ends of the main pin 4 are respectively rotatably mounted in the two connecting holes, and the main pin 4 is used for penetrating through the shaft hole of the front shaft. The front shaft is arranged in the accommodating space through the main pin 4, so that the movement of the front shaft is more reliable.
Further, the knuckle structure 100 further includes a mounting bearing, which is mounted in the connecting hole and sleeved on the kingpin 4. Facilitating rotation of the kingpin 4 within the attachment bore.
In addition, at least one connecting hole is arranged to penetrate through the connecting arm 12 where the connecting hole is located; the knuckle structure 100 further includes a dust cap 5, wherein the dust cap 5 is mounted to the connecting hole facing away from the opening of the accommodating space, and is arranged to cover the opening of the connecting hole. The dustproof cover 5 is arranged at the opening in a covering mode, interference friction between the dustproof cover 5 and the main pin 4 is prevented, the steering retardation is reduced, and steering is light.
In order to facilitate the connection of the knuckle arm 2 with the steering drag link, a first connection hole is arranged on the connection end in a penetrating manner and is used for being connected to the steering drag link. The first connecting hole is connected with a steering drag link, and the universality of the knuckle arm 2 is guaranteed.
Similarly, a second connecting hole extending in the up-down direction is formed in the free end of the extending arm 11, and the second connecting hole is used for being connected to a tie rod.
It should be noted that, in the two related technical features of the first connection hole and the second connection hole, they may exist alternatively or simultaneously, and in this embodiment, the technical effect brought by the simultaneous existence is the best.
The present invention further provides a vehicle front axle, which includes all the technical features of the above-mentioned knuckle structure 100, that is, includes the technical effects brought by all the technical features, and details are not repeated herein.
Referring to fig. 3, the front axle 1000 of the vehicle includes a front axle 200, a tie rod 300, and a knuckle structure 100. The front axle and the tie rod are connected by the knuckle structure 100.
Further, the knuckle structure 100 further comprises a kingpin 4, and a positioning groove is concavely formed in the outer side surface of the kingpin 4; a shaft hole which moves up and down is arranged on the front shaft 200 in a penetrating way, a through hole communicated with the shaft hole is arranged on the side surface of the front shaft 200 in a penetrating way, and the shaft hole is sleeved on the main pin 4; the front axle 1000 of the vehicle further comprises a positioning pin 400, the positioning pin 400 penetrates through the through hole and extends into the shaft hole, and the positioning pin 400 is clamped in the positioning groove. The front shaft 200 and the main pin 4 rotate synchronously, and the structure is simple and the synchronism is good.
The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents made by the contents of the present specification and drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. A knuckle structure characterized by comprising:
the steering knuckle comprises a steering knuckle body, a steering knuckle body and a steering handle, wherein an extension arm is formed, extends backwards from the steering knuckle body and is used for being connected to a steering tie rod; and the number of the first and second groups,
the knuckle arm includes that it is relative installation end and the link that sets up to be along the left right side, the installation end install extremely on the knuckle body, and with the extension arm sets up along the interval from top to bottom, the link is used for being connected to on the steering drag link.
2. The knuckle structure according to claim 1, wherein said knuckle body further comprises a connecting arm spaced up and down from said extending arm;
the knuckle arm is mounted to the connecting arm.
3. The knuckle structure of claim 2, wherein said connecting arm has a threaded bore;
a through hole penetrates through the mounting end;
the steering knuckle structure further comprises a fixing bolt, wherein a thread section of the fixing bolt penetrates through the through hole and is in threaded connection with the inside of the threaded hole.
4. The knuckle structure according to claim 1, wherein said knuckle body further comprises two connecting arms spaced apart from each other in the up-down direction, and said two connecting arms form a receiving space for receiving a front axle.
5. The knuckle structure according to claim 4, wherein the connecting arms are provided with connecting holes extending in the up-down direction on opposite end surfaces thereof;
the steering knuckle structure further comprises a main pin, two ends of the main pin are respectively rotatably installed in the two connecting holes, and the main pin is used for penetrating through the shaft hole of the front shaft.
6. The knuckle structure of claim 5, further comprising a mounting bearing mounted in said connecting hole and disposed on said main pin.
7. The knuckle structure of claim 5, wherein at least one said attachment hole is provided through said connecting arm in which it is located;
the knuckle structure further comprises a dustproof cover, wherein the dustproof cover is mounted to the opening of the connecting hole, back to the accommodating space, and is arranged to cover the opening of the connecting hole.
8. The knuckle structure according to claim 1, wherein a first connection hole extending in an up-down direction is formed through the connection end, and the first connection hole is configured to be connected to a front axle; and/or the presence of a gas in the gas,
and a second connecting hole which extends up and down is arranged at the free end of the extending arm in a penetrating manner and is used for connecting to a steering tie rod.
9. A vehicle front axle, comprising:
a front axle;
a tie rod; and the number of the first and second groups,
a knuckle structure according to any one of claims 1 to 8.
10. The vehicle front axle of claim 9, wherein the knuckle structure further comprises a kingpin having a detent recessed into an outer side surface thereof;
the front shaft is provided with a shaft hole which moves up and down, the side surface of the front shaft is provided with a through hole communicated with the shaft hole, and the shaft hole is sleeved on the main pin;
the vehicle front axle further comprises a positioning pin, the positioning pin penetrates through the through hole and extends into the shaft hole, and the positioning pin is clamped in the positioning groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011276177.6A CN112373561A (en) | 2020-11-13 | 2020-11-13 | Knuckle structure and vehicle front axle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011276177.6A CN112373561A (en) | 2020-11-13 | 2020-11-13 | Knuckle structure and vehicle front axle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112373561A true CN112373561A (en) | 2021-02-19 |
Family
ID=74584202
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011276177.6A Pending CN112373561A (en) | 2020-11-13 | 2020-11-13 | Knuckle structure and vehicle front axle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112373561A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093991A (en) * | 1993-04-14 | 1994-10-26 | 詹姆斯·米歇尔 | One-piece steering knuckle assembly |
| JPH11208501A (en) * | 1998-01-30 | 1999-08-03 | Suzuki Motor Corp | Steering knucle structure of automobile |
| JP2005289196A (en) * | 2004-03-31 | 2005-10-20 | Nissan Diesel Motor Co Ltd | Mounting structure of steering arm and tie rod arm |
| EP1957343B1 (en) * | 2005-12-01 | 2010-09-29 | Renault Trucks | Steering assembly for an automotive vehicle |
| CN203294179U (en) * | 2013-05-02 | 2013-11-20 | 贵州航天红光机械制造有限公司 | Improved structure of car front axle steering knuckle arm and steering knuckle |
| CN104309686A (en) * | 2014-10-27 | 2015-01-28 | 中国重汽集团济南动力有限公司 | Steering axle assembly |
| US20150232123A1 (en) * | 2014-02-19 | 2015-08-20 | Arvinmeritor Technology, Llc | Steering knuckle assembly |
| CN107487359A (en) * | 2017-08-10 | 2017-12-19 | 安徽江淮汽车集团股份有限公司 | A kind of attachment structure of knuckle and front axle housing |
| CN107813872A (en) * | 2017-09-27 | 2018-03-20 | 湖北三环锻造有限公司 | With the automotive disc knuckle and its processing technology of steering arm integral forming |
| CN111252138A (en) * | 2020-02-25 | 2020-06-09 | 庆铃汽车（集团）有限公司 | Full-flow-line steering knuckle forging structure |
| CN111688408A (en) * | 2020-07-07 | 2020-09-22 | 合肥海源机械有限公司 | Cast steering axle of double-cone bearing steering mechanism |
-
2020
- 2020-11-13 CN CN202011276177.6A patent/CN112373561A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1093991A (en) * | 1993-04-14 | 1994-10-26 | 詹姆斯·米歇尔 | One-piece steering knuckle assembly |
| JPH11208501A (en) * | 1998-01-30 | 1999-08-03 | Suzuki Motor Corp | Steering knucle structure of automobile |
| JP2005289196A (en) * | 2004-03-31 | 2005-10-20 | Nissan Diesel Motor Co Ltd | Mounting structure of steering arm and tie rod arm |
| EP1957343B1 (en) * | 2005-12-01 | 2010-09-29 | Renault Trucks | Steering assembly for an automotive vehicle |
| CN203294179U (en) * | 2013-05-02 | 2013-11-20 | 贵州航天红光机械制造有限公司 | Improved structure of car front axle steering knuckle arm and steering knuckle |
| US20150232123A1 (en) * | 2014-02-19 | 2015-08-20 | Arvinmeritor Technology, Llc | Steering knuckle assembly |
| CN104309686A (en) * | 2014-10-27 | 2015-01-28 | 中国重汽集团济南动力有限公司 | Steering axle assembly |
| CN107487359A (en) * | 2017-08-10 | 2017-12-19 | 安徽江淮汽车集团股份有限公司 | A kind of attachment structure of knuckle and front axle housing |
| CN107813872A (en) * | 2017-09-27 | 2018-03-20 | 湖北三环锻造有限公司 | With the automotive disc knuckle and its processing technology of steering arm integral forming |
| CN111252138A (en) * | 2020-02-25 | 2020-06-09 | 庆铃汽车（集团）有限公司 | Full-flow-line steering knuckle forging structure |
| CN111688408A (en) * | 2020-07-07 | 2020-09-22 | 合肥海源机械有限公司 | Cast steering axle of double-cone bearing steering mechanism |
Non-Patent Citations (1)
| Title |
|---|
| 尚晓梅等: "《汽车底盘机械系统检修》", 30 September 2018 * |
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| PB01 | Publication | ||
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210219 |
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| RJ01 | Rejection of invention patent application after publication |